baber/WOPTO huggingface dataset:
Patent GB-1398970-A (GB)
Title: Production of chroman-3-ol and its derivatives by a cyclization  process
IPC: C07D311/58
Filed: 1971-06-07
Abstract: 1398970 Chroman-3-ol and derivatives ALBRIGHT & WILSON Ltd 5 June 1972 [7 June 1971] 19242/71 Heading C2C Chroman-3-ol and derivatives thereof are produced by the oxidation of an allyl ether of formula or derivative thereof containing one or more substituents in the aromatic nucleus, with the proviso that there is at least one position ortho to the -OCH 2 -CH=CH 2  group unsubstituted, no substituent causing polymerization and/or degradation of the molecule under the conditions of the oxidation, no substituents resulting in an overall electronic withdrawal from both ortho positions and no sterically hindering group being adjacent to an ortho group when said ortho position is the only unsubstituted ortho position, by reaction with a thallium III salt in a strong acid solution. Exemplified acids are sulphuric, nitric, fluoroboric, perchloric, and trifluoroacetic acids, the thallium III salt preferably having the same anion as the acid employed. Preferable substituents in the aromatic nucleus are one of a halogen atom, or a phenyl, phenoxy, benzyl, benzyloxy, acetyl or acetoxy group, or one or two alkyl or alkoxy groups.
Patent GB-1413486-A (GB)
Title: Oscillators including piezo electric surface wave delay devices
IPC: H03B5/32
Filed: 1972-04-26
Abstract: 1413486 Oscillators; frequency changers; delay lines MARCONI CO Ltd 29 Dec 1972 [26 April 1972] 19249/72 Headings H3F and H3U To alter the phase transfer characteristic of a surface wave delay line used in the feedback path of an amplifier to form an oscillator, and hence to vary the oscillator frequency, there is provided, either a thin film gold strip plate 4, Fig. 4, between input and output transducers 6, 7, on piezo substrate 5, of the line, or one, or two as shown, thin film spiral inductors 8, 9, Fig. 5 in series with an electrode of the transducers 6, 7. The phase transfer is adjusted by adjusting the width W of plate 4 by laser, electron beam or mechanical machining, the plate altering the wave velocity under it. Inductors, 8, 9 are adjusted by shorting out parts of turns using a wire bonding machine. The handpass characteristic of the line is displayed in Fig. 2 (not shown). Typical operating frequencies, inductance values, and phase shifts are given. Inductors 8, 9 are formed together with the transducers photolithographically.
Patent GB-883276-A (GB)
Title: An explosive system
IPC: C06B31/28
Filed: 1958-06-17
Abstract: 883,276. Explosive systems. CONSOLIDATION COAL CO. June 17, 1958 [June 21, 1957], No. 19317/58. Drawings to Specification. Class 9(2). An explosive system comprises a main explosive charge, a primer charge and a detonator, the main charge comprising ammonium nitrate homogeneously mixed with 4 to 8% of its weight of normally liquid hydrocarbons, the primer charge comprising ammonium nitrate homogeneously mixed with 0.5 to 3.5% of its weight of normally liquid hydrocarbons, the detonator being a blasting cap or detonating fuze and being in detonating relation only to the primer charge which is in its turn in detonating relationship to the main charge. Preferably the hydrocarbons have a flash point above 100‹F. The ammonium nitrate may be in the form of coated or uncoated prills, which may be milled if desired.
Patent GB-205210-A (GB)
Title: Improvements in or relating to radiators for internal combustion engines
IPC: F28D1/053
Filed: 1922-07-14
Abstract: 205,210. Winn, A. E., and Winn, W. C., (trading as Winn & Son). July 14, 1922. No Patent granted (Sealing fee not paid). Radiators, motor-car and like. - A screen 7 having open-ended tubular channels or passages through it is arranged in front of the usual watertubes 3 to break up the current of air passing over the water-tubes and to give the front of the radiator a honeycomb appearance. The screen may be formed of a number of short tubes sol. dered or otherwise secured together side by side, or of corrugated metal strips 9, Fig. 5, placed together with their projecting portions touching and united by soldering &c. The water-tubes may be vertical or horizontal, and may have crinkled gills 10, Fig. 6, with struch-up tongues 11 serving as spacers. Instead of gilled tubes, plain tubes may be used, a screen such as described being placed between adjacent rows of water-tubes.
Patent GB-1524905-A (GB)
Title: Carrier bag holders
IPC: B65B67/12
Filed: 1976-08-16
Abstract: 1524905 Bag holders N M BACON 16 Aug 1976 [12 May 1976] 19452/76 Heading A4T [Also in Division B8]  A holder for a handled carrier or like bag comprises two spaced support means 2, 3, each for retaining a respective handle portion of the bag and having side walls 5, 6 with portions 11, 12, 14 projecting beyond a platform portion 4 to form retaining means for the bag handles. The support means 2, 3 are preferably integrally moulded with a frame 1, e.g. from polypropylene, and slots (7), Fig. 2 (not shown), are provided to receive screws, &c., e.g. for attachment to a wall or door. The projecting portions 14 of the outer side walls 6 may have hook portions (16), Fig. 5 (not shown), to retain the bag handle if pushed over both the portions 11, 14, rather than merely the portions 11, 12.
Patent GB-1495919-A (GB)
Title: Drive clutch assembly
IPC: F16H3/14
Filed: 1976-05-12
Abstract: 1495919 Friction clutches; change-speed gear CHRYSLER CORP 12 May 1976 [23 July 1975] 19500/76 Headings F2C and F2D A drive arrangement comprises an input shaft having a clutch member 18 fixedly mounted on it, either of a pair of clutch members 20, 22 rotatably mounted on the input shaft being engageable with the clutch member 18 to drive a respective gear 46 or 48 through camming surfaces 52 (Fig. 8) and so drive an output shaft 16 in forward or reverse through a gear 50. The clutch members 18 and 20 or 22 have interengaging frusto-conical surfaces, those of member 18 being grooved. The gears 46, 48 are axially fixed and rotatable on shaft 12, the camming surfaces 52 providing an additional clutch-engaging force. Forks 32 and 34 engage in grooves 42 of members 40 which in turn are rotatably mounted, through needle bearings 44, relative to the clutch members 20, 22. The forks 32, 34 are connected together to move one clutch member 20, 22 out of engagement as the other is engaged. The input may, in an alternative embodiment (Fig. 9, not shown), be to a shaft positioned as shaft 16 with the output from a shaft in the position of the input shaft. The drive is in a housing 11 containing lubricant, a thrust washer 58 having vanes 64 for directing this through 66 to a bore 17 in the input shaft, from which radial bores 72 distribute the lubricant to the clutches and gears. The drive is for use in a boat.
Patent GB-710618-A (GB)
Title: Improvements in bevelling machines
IPC: B23D19/08
Filed: 1952-08-01
Abstract: 710,618. Shearing. FAGRELL, S., and CARDELL, O. Aug. 1, 1952 [Aug. 31, 1951], No. 19583/52. Class 83 (4) A machine for bevelling the edge of a workpiece comprises a cutter 34 rotated by an electromotor 36 carried in a frame 50 angularly adjustable by a worm 44 in a resilient standard 12. The work is supported on an annular member 66 and is guided at the edge by an annular member 62 both angularly arranged on a freely movable ring 68. In use, curved or straight work 18 is fed by serrations in the cutter 34 along the guides 62, 66 and is formed with a single or double bevel by the cutter 34. The base 10 may be moved on castors 16 or may be supported on feet projected by screws 22. The member 62 may carry circular or rectangular recesses, Fig. 7 (not shown), for positioning bars to be bevelled. The inside edge of the member 62 may form a surface with which the cutter co-operates to shear.
Patent GB-576481-A (GB)
Title: Improved quick release box for parachute harness
IPC: B64D17/32
Filed: 1943-11-23
Abstract: 576,481. Fasteners. TURNER PARACHUTE PTY., Ltd. Nov. 23, 1943, No. 19585. Convention date, Dec. 4, 1942. [Class 44] A parachute harness quick-release box comprises radial apertures 15 for insertion of the end fittings 16 of the harness to engage latches 18, 19 carried by an annular plate 20 loosely guided by pins 22 and loaded by springs 21. A bolt having a head 26, shoulder 27 and threaded shank 28 is guided on a pillar 37 and engages a nut 30 having flanges 31, 32 located on either side of the plate 20. The shoulder 27 of the bolt has a cam groove 38 that engages the end of a spring-loaded pin 39. The parts are shown in the locked position in Fig. 1 ; the flange 32 engaging the plate 20 and the pin 39 engaging a shallow recess 44 in the cam groove 38. A quarter-turn of the head 26 lowers the nut 30 until the flange 31 engages the plate 20. During the next quarter-turn, the pin 39 travels in the cam groove from B to C and the nut remains stationary whilst the bolt rises. The third quarter-turn causes the bolt to rise further until the pin 39 reaches the groove 48 when the head 26 can be depressed and the latches 18, 19 lowered to release the harness. Reverse movement of the head causes the pin 39 to travel along the groove 49 in a direction to re-set the box. One latch 19 may be longer than the remainder so that one end fitting 16 is not released.
Patent GB-530928-A (GB)
Title: Apparatus for testing gummed paper, webs of fabric and the like
IPC: G01N19/04
Filed: 1939-07-06
Abstract: 530,928. Testing paper, fabric &c. NEUBRONNER, C. July 6, 1939, No. 19711. Convention date, Oct. 13, 1938. [Class 106 (ii)] The adhesiveness of gummed paper &c. is determined by measuring the force required to detach a sample from a support the force being applied at right-angles to the adhering surface. Mounted on a bar 1 is a cylinder 2 having two pistons 4, 5 joined together by a rod 3. The rod 3 is connected by an arm 6 to a parallel rod 8 sliding in guides 10, 11 and adapted to operate a ram 9 to which is adapted to be clamped the ungummed surface of a circular sample of gummed paper. Facing the ram is a guide 13 for a slider 14 carrying a piece of corrugated millboard 17 to which the sample is to be stuck, a sponge 20 and water container 19 together with a thermometer 21. In use, the slider 14 is moved down thus dampening the surface of the sample. A timing device 22 with hands 23, 24 is set to an interval for the test, and when the slider 14 engages the lever 25 is started. At the same time the slider engages a contact 26 and energizes a solenoid 32 to move a three-way cock 28 and admit compressed air from a pump 33 through pipe 29 to the cylinder 2. The pistons are moved to the left, also the ram 9 and the sample applied to the millboard 17. After the set interval, the other solenoid 32 is energized to reverse the cock and admit air via pipe 27 to push piston 4 and ram 9 to the right. The force required to do this is indicated by a pressure gauge 38. A second pressure gauge 35 indicates the pressure in the pump. To indicate tensile strength a sample strip of paper is clamped at 39 and 40 and the force indicated by the gauge 38. For bursting strength a sample is clamped at 43 and a ram 42 used.
Patent GB-386000-A (GB)
Title: Improvements in or relating to metal-clad electric switchgear
IPC: H02B1/00
Filed: 1931-07-09
Abstract: 386,000. Hand-trucks. REYROLLE & CO.. Ltd., A., Hebburn-on-Tyne, CLOTHIER, - H.W., 3, Jesmond Park West, Newcastleon- Tyne, CHRISTIE, J., 4, Sidecliff Road, Sunderland, and ALLAN, A., Cragside, Ashleigh Grove, Tynemouth. July 9, 1931, No. 19762. [Class 108 (i).] For raising a piece of electrical apparatus from the ground and wheeling it away for repairs &c., two trucks on rails 52 are applied to lugs 99 on the tank of the apparatus, the trucks having abutment rollers 222 for taking the weight. Cranks 227 rotate through worm gearing 226 an arm 225 on the body 220 to rotate the latter about the axle and raise the apparatus, the latter being propelled by means of a handle 223 operating by means of a ratchet 224 on the axle.
Patent GB-816412-A (GB)
Title: Improved silica glass and process for its manufacture
IPC: C03C3/06
Filed: 1957-07-24
Abstract: 816,412. Silica glasses. QUARTZ & SILICE. June 24, 1957 [July 13, 1956], No. 19791/57. Class 56. A silica glass is made from very pure silica incorporating no other substance except a small quantity of cerium, in proportion less than 10-3. The charge of very pure silica has a cerium salt such as the chloride added, the salt is decomposed in situ, as by treating with a ammonia, and the mixture is then melted preferably under non oxidising conditions. The silica glass preserves its initial transparency in the visible spectrum without blackening after irradiation by electro-magnetic radiations and/ or elementary particles and also has very weak induced radio-activity after irradiation in an atomic reactor. It can therefore be used for the manufacture of ampoules for liquids from an atomic reactor, for windows into nuclear apparatus and for optical assemblies for examination of radio-active bodies.
Patent GB-607874-A (GB)
Title: Improvements in and relating to pump drives
Filed: 1945-08-01
Abstract: 607,874. Driving reciprocating pumps. NATIONAL SUPPLY CORPORATION, and OIL WELL ENGINEERING CO., Ltd. Aug. 1, 1945, No. 19813. Convention date, Aug. 1, 1944. [Class 102(i)] In a pump drive arrangement two pumps 1, 2 are coupled with three engines 3, 4, 5 by means of sprocket and belt drives in cooperation with clutch means. A drive shaft 10 of the engine 5 is coupled with a counter-shaft 12 on to which is secured a sprocket 13 which is adapted to be releasably coupled by means of a friction clutch 14 with the shaft 12a. Upon the latter a pulley 15 is carried which is aligned with the pulley 16 of the pump 1. The driving shaft 18 of the engine 4 is coupled with a counter-shaft 20 upon which are mounted a pair of sprockets 21, 32 that are adapted to be releasably clutched to the shaft 20 by means of the jaw clutches 23, 24 respectively, the shaft 20 extends through a friction clutch 30 to couple with the driving shaft 31 of the pump 2. A low-speed drive is provided comprising the sprocket-wheels 32, 33, the latter wheel being provided with a friction clutch 34. By clutch selection, any engines may be utilized for driving either of the two pumps or the engines may be coupled to drive the pumps. Specification 603,641, [Group XXI], is referred to.
Patent GB-596724-A (GB)
Title: Improvements in or relating to halters for animals
IPC: A01K1/062
Filed: 1945-08-01
Abstract: 596,724. Stable fittings. BEATTY BROS., Ltd. Aug. 1, 1945, No. 19834. Convention date, Aug. 17, 1944. [Class 20(i)] A halter for animals comprises two members 10, 11 hinged together at 12, the member 11 being chained to the stall and having notches 13 in its free end. A frame 20 on the free end of the member 10 has an opening 14, through which the notched end of the member 11 normally extends, and two latch members 15 in the form of spring-retracted slidable rods with their ends bent over to engage a pair of notches selected according to the size of halter required. The member 10 is supported by a pivotal stop member 25. Unlocking is effected by depressing the protruding ends of the latch members 15, and as this requires two simultaneous operations the animal cannot free itself accidentally.
Patent GB-722223-A (GB)
Title: Bracing means for coke oven batteries
IPC: C10B29/08
Filed: 1952-08-07
Abstract: 722,223. Coke-oven bracings. KOPPERS GES., H. Aug. 7, 1952, [Aug. 18, 1951.] No. 19941/52. Class 51 (2). A coke oven battery having non-refractory brickwork 10 between the lower oven structure and the foundation of the battery is provided with bracing means including ties passing through the oven top and the masonry of the oven foundation and bearing against vertical buckstays applied against the masonry, and is characterized in that there is applied against the brickwork 10, through which each lower tie 8 is passed, one or more pressure members 17 associated with the tie and pressed against the brickwork by a spacer element 36 and by a nut 35 which is adjustable on the tie and is independent of a second nut 9 also provided on the tie for exerting pressure against the corresponding buckstay 5. If spacer element 31 is arranged between the nut 9 and the buckstay and is formed with an aperture 34 to permit access to the nut 35. Each buckstay is forked at the part thereof corresponding to a lower tie, the tie passing between the forked portions.
Patent GB-933684-A (GB)
Title: Improvements in aerial disinfectant compositions
Inventor: HAMILL JOHN
IPC: A61L9/01
Filed: 1961-06-02
Abstract: Aerial disinfectant compositions comprise as active ingredients at least one dihydroxy compound selected from propylene glycol, dipropylene glycol, triethylene glycol, 2-methyl-2,4-pentanediol and resorcinols of the formula <FORM:0933684/VI/1> wherein R is hydrogen or alkyl together with at least one a -hydroxycarboxylic acid of the formula <FORM:0933684/VI/2> wherein R1 singly represents methyl, R2 singly represents hydrogen, methyl or ethyl or wherein R1 and R2 together represent -(CH2)n-, where n is 4 or 5.  The compositions may be dispersed into the atmosphere to be disinfected by self-propelled pressurized aerosols, mechanical dispersion of solutions by pump or squeeze bottle, evaporation from the surface of impregnated material such as paper or by suitable heat vaporization.  The preferred aerosol propellants are low-boiling fluorochloroalkanes; "Calorgas" (Registered Trade Mark) may also be used.  The aerosol compositions may also contain inert solvents, e.g. alcohols, ketones, ethers and halogenated hydrocarbons, deodorants such as aliphatic aldehydes and aliphatic esters of a -methylacrylic and a -ethylacrylic acids, and propylene glycol and its condensation polymers if not already present as active ingredients, and for relief of the common cold may contain perfumes such as menthol, camphor, oil of eucalyptus and oil of wintergreen, and also sympathomimetic amines.  The mechanical dispersion compositions may contain inert solvents, e.g. water or lower alkanols, deodorants, aromatic compounds, sympathomimetic amines and perfumes.  Materials such as paper may be impregnated with ethereal solutions of the active ingredients.  As active ingredients, resorcinols specified are resorcinol itself and hexyl-resorcinol, and specified a -hydroxycarboxylic acids are lactic acid, a -hydroxyisobutyric acid, a -hydroxy-a -methylbutyric acid and cyclohexanol-1-carboxylic acid.
Patent GB-201942-A (GB)
IPC: C01G37/10
Filed: 1923-08-07
Abstract: Residues containing chromium obtained in the production of organic dyes are dissolved in sulphuric acid in excess and treated with a dichromate, the acid being sufficient to convert the total chromium into sulphate or basic sulphate.  When potassium or ammonium dichromate is used, a chrome alum may be crystallized out by adding the necessary additional quantity of potassium or ammonium sulphate. The dichromate is preferably added in instalments.  The Specification as open to inspection under Sect. 91 (3) (a) contains examples which do not appear in the Specification as accepted.
Patent GB-1421342-A (GB)
Title: Phase measurement system with synchronized demodulation
IPC: G01R27/28
Filed: 1972-05-01
Abstract: 1421342 Phase detectors CANADIAN GENERAL ELECTRIC CO Ltd 6 April 1973 [1 May 1972] 20133/72 Heading H3A In a phase detection system, synchronous demodulators 20, 21 receive quadrature reference signals on lines 39, 40 (e.g. from reference oscillator 11 ) and common variable phase inputs on lines 41, to produce two outputs X, Y on lines 49, 50, the two outputs are fed to inverters 23, 24 to produce two further outputs X im , Y im  and all four outputs are fed in groups of three to selectors 29 . . . 32 which connect to an output lead 48 that signal of the four which has a required instantaneous value and polarity. As described, the detector is used in a fluid flow measuring system in which the input signal is also derived from oscillator 11 and the output selected is that one which gives a positive change in a positive signal for a positive change in phase of input signal. An output corresponding to any amplitude modulation on the input signal may be extracted on line 46.
Patent GB-645110-A (GB)
Title: Improvements connected with nuts or bushes
IPC: F16B37/02
Filed: 1948-07-29
Abstract: 645,110. Anchor nuts. FIELD, C. L. July 29, 1948. No. 20195. [Class 89(i)] [Also in Group XXXIV] Anchor nuts are formed from a length of strip metal bent a number of times at the centre to form a laminated nut body 3 the ends extending on opposite sides to form attachment lugs 5, 6 that 5 being joggled into the plane of 6. The laminations are pressed tightly together and are drilled and tapped at 4. The lugs may be left plain for spot welding, provided with dimples 8 for resistance welding, or be perforated for bolts or rivets. The bottom laminations may have a small flange provided round the hole 4 for locating means.
Patent GB-265466-A (GB)
Title: Improvements relating to screw down bib cocks, stop cocks, spring valves and the like
IPC: F16K43/00
Filed: 1926-08-17
Abstract: 265,466. Barnard, F. J., and Ranells, H. J. Aug. 17, 1926. Closure members-A stop valve device of the kind provided with a secondary valve adapted to sweat on the underside of the main seating to facilitate repairs has the secondary valve spindle B arranged to pass up into the main spindle K where it bears against a screw E threaded through the top of the said spindle. The main valve J<1> is actuated by the screwed spindle K and has a washer J adapted to engage a seat D. The secondary valve C<1> is acted on by a spring F housed in a cap L and is provided with a washer C adapted to engage the underside of the seat D when the screw E is unscrewed from the top of the spindle K. The spring may be supported by a perforated plate resting on lugs cast on the inside of the inlet connection.
Patent GB-802420-A (GB)
Title: Improvements in or relating to washing machines
Inventor: MULLER HEINZ
IPC: D06F49/00
Filed: 1957-06-27
Abstract: 802,420. Washing and drying machines. SCHARPF, E., SCHARPF, O., and SCHARPF, E., [trading as SCHARPF K.G. MASCHINENFABRIK GEB.]. June 27, 1957, No. 20293/57. Class 138 (2). A washing machine is provided with a centrifuge 19 actuated by a motor 21 or stopped by a brake 37, and a pump 18 to evacuate water from the washing chamber 16 which, together with the centrifuge, are controlled by the lever 15. When the lever is in the central position marked " 0 " the motor 17 actuates an impeller inside the washing chamber by means of the V-belt 60 and pulley wheel 54. Spring 36 maintains the brake arm 34 and its friction pad 37 in contact with hub 20 of the centrifuge. When the lever is raised to position " II " it moves successively lever 24, rod 27 and lever 28, causing shaft 22 to rotate in its bearings 29 and 30 in a clockwise direction. As a result the V-shaped top of lever 42 loses contact with an idler lever 43, the lever 32 with its roller 31 releases the brake lever from the tension of spring 36 and the end 38 of shaft 22 deflects the switching element 39 and causes the switch 40 to start up motor 21. A pump 61 is driven by belt 41 which also drives the pulley wheel attached to centrifuge 19. When the control lever is in position " I " shaft 22 is rotated anti-clockwise and lever 42 engages lever 43 pulling it anti-clockwise, and simultaneously effecting the train of levers and rods 44, 46, 47, 48 and the casing 50 of pump 18. Lever 46 pivots about 45, lever 48 about 49 and the pump casing 50 about 51 so that the wheel 53 which drives the pump is brought into contact with the inside edge of pulley wheel 54 and pump 18 is set into operation. The delivery pipes 56 and 63 for the discharge of liquid from the tank and centrifuge chamber may be combined into a single flexible tube 69.